CN102394279A - Charging explosion-proof temperature control lithium ion battery - Google Patents
Charging explosion-proof temperature control lithium ion battery Download PDFInfo
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- CN102394279A CN102394279A CN2011103930422A CN201110393042A CN102394279A CN 102394279 A CN102394279 A CN 102394279A CN 2011103930422 A CN2011103930422 A CN 2011103930422A CN 201110393042 A CN201110393042 A CN 201110393042A CN 102394279 A CN102394279 A CN 102394279A
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- ion battery
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The invention provides a charging explosion-proof temperature control lithium ion battery. The charging explosion-proof temperature control lithium ion battery which comprises a lithium ion battery monomer with an anode end and a cathode end is characterized in that: the periphery of the lithium ion battery monomer is provided with a housing with a cavity; and an insulation liquid is injected to the cavity of the housing. According to the invention, the lithium ion battery always works in the temperature-controllable insulation liquid which is insulated from air, so combustion and explosion problems caused by the lithium oxygen contact because of the abnormality appearing in the battery working process are effectively prevented, potential safety hazards of the combustion, the explosion and the like of the lithium ion battery, which are caused by the risen temperature because of external factors of the battery are effectively prevented, a safe operation guarantee is provided for the lithium ion battery, especially the large capacity lithium ion battery and the super capacity lithium ion battery applied in energy storage power stations, automobiles, steamships and other industries, the battery service life is prolonged, and the electrical performance and the safety performance of the battery are improved.
Description
Technical field
The present invention relates to a kind of lithium ion battery, relate in particular to explosion-proof and the lithium ion battery that can temperature control of a kind of topping up, belong to the power battery technology field.
Background technology
Lithium ion battery is a kind of environmental protection battery, has energy, power density is big, and self discharge is little; Memory-less effect, operating temperature range wide (being-20 ℃～60 ℃), cycle performance is superior; But fast charging and discharging; And charge efficiency is up to more than 96%, and long service life does not contain advantages such as poisonous harmful substance.Existing lithium ion battery is all done negative pole with carbon materials, does positive pole with the compound that contains lithium, and through lithium ion coming and going or embedding between positive and negative electrode, accomplishes the charge or discharge of battery.When battery is charged; Lithium ion is deviate from from the positive pole of battery, embeds negative pole through electrolyte, because the negative pole of battery is the material with carbon element of layer structure; A lot of micropores are arranged on it; Thereby the lithium ion from positive pole is embedded in the micropore of carbon-coating, and the lithium ion of embedding is many more, and charging capacity is high more.Equally, when battery discharge (even using battery), the lithium ion that embeds in the negative pole carbon-coating micropore is deviate from, and returns and embed positive pole through electrolyte, and it is many more to return and embed anodal lithium ion, and discharge capacity is high more.Existing lithium ion battery comprises a hollow shell; This hollow shell is processed by steel, aluminium, nickel-clad iron, aluminium, plastics etc.; And on hollow shell, establish block, just the both positive and negative polarity exit of battery is contained in the organic electrolyte of shell hollow; Place positive pole, negative pole and the barrier film between them of electrolyte; Wherein, positive pole is the sheet of processing with active material such as LiMn2O4, cobalt acid lithium, nickle cobalt lithium manganate or LiFePO4, the electrolysis aluminium foil of the conductive current collector used thickness 10--20 micron on it; Negative pole is the sheet of processing with the carbon of active material such as graphite, approximate graphite-structure, the electrolytic copper foil of the conductive current collector used thickness 7-15 micron on it; Barrier film between the positive and negative electrode is a composite membrane, and its effect is when isolating battery plus-negative plate, only allows lithium ion to pass through, the insulation electronics; Organic electrolyte comprises carbonates solvent and the gluey electrolyte of polymer that wherein is dissolved with lithium hexafluoro phosphate.
Existing lithium ion battery is prone to cause security incident, that is: in charge and discharge process because of there being drawback; Can form dendrite because of the precipitating metal lithium, and then diaphragm, internal short-circuit caused; In case and short circuit will produce overcurrent, cause that temperature sharply rises, thereby cause the oxidized and reduction of low-flash, low boiling carbonic ester in the electrolyte; And produce a large amount of gases and more thermal energy, when these gases and heat energy have little time to discharge, inner pressure of battery is sharply risen and set off an explosion; As far as using the gluey electrolytical lithium ion battery of polymer, also can Yin Wendu raise and more fierce burning takes place; In addition,, burn and the electrolyte that ignites at once, strong flame takes place and make the gas rapid expansion, set off an explosion when the lithium metal of separating out directly contacts with air.In addition, lithium ion battery is when high and low temperature, and performance also can receive very big influence.
Although existing lithium ion battery all is provided with and followingly overcharges, cross and protective measure such as put: the one, adopt switch element, the resistance of utilizing switch element is stopped power supply with the characteristic that temperature rises and increases automatically; The 2nd, select suitable separator material, make micron order micropore on the dividing plate when temperature rises to set point, can dissolve automatically, thereby passing through of blocking-up lithium ion stops the reaction of inside battery; The 3rd, safety valve (being exactly the air vent at battery top) is set, when cell internal pressure rose to set point, safety valve was opened the venting release automatically, too much deformation took place to prevent the inside battery gas build, finally caused the housing explosion.But its potential safety hazard still can't be avoided.Especially use high power capacity, high-power drive pond in energy-accumulating power station, automobile, steamer and other industrial products, more need obtain safe and reliable guarantee.
Summary of the invention
The object of the present invention is to provide the explosion-proof temperature control lithium ion battery of a kind of topping up, fundamentally solve safe operation problems such as lithium ion battery is inflammable, explosive, improve useful life and other many performance of battery simultaneously.
The present invention is to provide the explosion-proof temperature control lithium ion battery of a kind of like this topping up; The lithium-ion battery monomer that comprises band positive and negative electrode exit on it; It is characterized in that being provided with the shell of a band cavity in the lithium-ion battery monomer periphery; And in cavity pocket of outer cover, inject iknsulating liquid, and lithium-ion battery monomer is immersed in the iknsulating liquid, can cool through iknsulating liquid on the one hand; Can effectively isolate contacting of lithium-ion battery monomer and air through iknsulating liquid on the other hand, thereby reach the explosion-proof purpose of temperature control.
Said shell shell wall is provided with through hole, and the positive and negative electrode exit of lithium-ion battery monomer passes through hole and stretches out outside the shell, so that electric energy to be provided.
Through hole on the said shell wall links to each other with pipeline, and pipeline links to each other with heat exchanger, so that after iknsulating liquid introduced in the heat exchanger cooling, return, realizes the temperature control of lithium-ion battery monomer again.
The outer wall of said shell is provided with fin, so that through the fin heat radiation, promptly lithium-ion battery monomer is carried out air cooling, realizes temperature control.
Said shell is provided with the fin of band cavity, and the cavity of fin is communicated with cavity pocket of outer cover, so that lithium-ion battery monomer is carried out air cooling, and the realization temperature control.
The preferred transformer oil of said iknsulating liquid.
Said lithium-ion battery monomer comprises the housing of a band cavity, with and go up the cap of band exit, be located at electrolyte and positive pole, the negative pole of mutual superposition in the housing cavity; Barrier film is set between positive and negative electrode; Conduction afflux aluminium foil and conduction afflux Copper Foil are set respectively in the positive and negative electrode both sides, and conduction afflux aluminium foil on the positive pole and the conduction afflux Copper Foil mutual dislocation on the negative pole, to realize two-way afflux; Balanced charge and discharge prolong battery useful life.
Establish through hole on the said conduction afflux aluminium foil, conduction afflux rod passes this through hole and extends to cap and become anodal exit outward.
Establish through hole on the said conduction afflux Copper Foil, conduction afflux rod passes this through hole and extends to cap and become the negative pole exit outward.
The present invention has advantage and effect: adopt such scheme; Lithium ion battery is always worked in the iknsulating liquid of and controllable temperature isolated with air; Effectively prevent in the battery operated process unusual because of occurring; And might cause lithium to contact with oxygen, thus cause the problem of burning, blast, effectively prevent simultaneously to cause potential safety hazards such as lithium ion battery burning, blast because of the outside batteries factor causes temperature to raise; Be lithium ion battery; Especially use big capacity and vast capacity lithium ion battery in energy-accumulating power station, automobile, steamer and other commercial Application that the safe operation guarantee is provided, prolong battery useful life, improve the electrical property and the security performance of battery.
Description of drawings
Fig. 1 is the present invention's structural representation;
Fig. 2 is another structural representation of the present invention;
Fig. 3 is the cross-section structure of Fig. 2;
Fig. 4 is the another structural representation of utility model;
Fig. 5 is the cross-section structure of Fig. 4.
Embodiment
Below in conjunction with accompanying drawing the present invention is done to further describe, be not limited thereto but hold within the present invention.
The explosion-proof temperature control lithium ion battery of topping up provided by the invention; The lithium-ion battery monomer 1 that comprises band positive and negative electrode exit 3,31 on it; The shell 5 of one band cavity 4 is set in lithium-ion battery monomer 1 periphery; And injection transformer is oily in shell 5 cavitys 4, and lithium-ion battery monomer 1 is immersed in the transformer oil, can cool through transformer oil on the one hand; Can effectively isolate contacting of lithium-ion battery monomer 1 and air through transformer oil on the other hand, thereby reach the explosion-proof purpose of temperature control; Said shell 5 shell walls are provided with through hole 2, and the positive and negative electrode exit 3,31 of lithium-ion battery monomer 1 passes through hole 2 and stretches out outside the shell 5, so that electric energy to be provided; Through hole 6,12 on said shell 5 walls links to each other with pipeline 7,11, and pipeline 7,11 links to each other with heat exchanger 8, establishes cooling water pipe in the heat exchanger 8; Arrival end 9, the port of export 10 of cooling water pipe link to each other with refrigeration machine respectively; So that iknsulating liquid is introduced in the heat exchanger 8, after the coolant cooling, return again; Realize the temperature control of lithium-ion battery monomer 1, like Fig. 1; Be arranged with four groups of fins 22 on the outer wall of said shell 5, establish three fins 22 for every group,, thereby lithium-ion battery monomer 1 is carried out air cooling, realize temperature control, like Fig. 2, Fig. 3 so that through fin 22 heat radiations; Be arranged with the fin 23 of two groups of band cavitys 24 on the said shell 5, establish two fins 23 for every group, the cavity 24 of each fin 23 is communicated with shell 5 cavitys 4, so that lithium-ion battery monomer 1 is carried out air cooling, realizes temperature control, like Fig. 4, Fig. 5.
Said lithium-ion battery monomer 1 comprises the housing 14 of a band cavity 13; With and go up the cap 20 of band exit 3,31; Be located at electrolyte and positive pole 15, the negative pole 18 of mutual superposition in housing 14 cavitys 13, between anodal 15, negative pole 18, barrier film 19 be set, conduction afflux aluminium foil 16 and conduction afflux Copper Foil 21 are set respectively in positive and negative electrode 15,18 both sides; And conduction afflux Copper Foil 21 mutual dislocation on conduction afflux aluminium foil on the positive pole 16 and the negative pole; Realizing two-way afflux, balanced charge and discharge prolong battery useful life; Establish through hole 25 on the said conduction afflux aluminium foil 16; Conduction afflux rod 17 passes this through hole 25 and extends to that cap 20 is outer to become anodal exit 3; Like Fig. 1; Establish through hole 25 on the said conduction afflux Copper Foil 21, conduction afflux rod 17 passes this through hole 25 and extends to that cap 20 is outer to become negative pole exit 31, like Fig. 1, Fig. 3.
Claims (6)
1. the explosion-proof temperature control lithium ion battery of topping up comprises the lithium-ion battery monomer of being with the positive and negative electrode exit on it, it is characterized in that being provided with in the lithium-ion battery monomer periphery shell of a band cavity, and in cavity pocket of outer cover, injects iknsulating liquid.
2. the explosion-proof temperature control lithium ion battery of topping up according to claim 1 is characterized in that said shell shell wall is provided with through hole, and the positive and negative electrode exit of lithium-ion battery monomer passes through hole and stretches out outside the shell.
3. the explosion-proof temperature control lithium ion battery of topping up according to claim 1 is characterized in that the through hole on the said shell wall links to each other with pipeline, and pipeline links to each other with heat exchanger.
4. the explosion-proof temperature control lithium ion battery of topping up according to claim 1 is characterized in that the outer wall of said shell is provided with fin.
5. the explosion-proof temperature control lithium ion battery of topping up according to claim 1 it is characterized in that said shell is provided with the fin of band cavity, and the cavity of fin is communicated with cavity pocket of outer cover.
6. the explosion-proof temperature control lithium ion battery of topping up according to claim 1 is characterized in that the preferred transformer oil of said iknsulating liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103930422A CN102394279A (en) | 2011-09-26 | 2011-12-01 | Charging explosion-proof temperature control lithium ion battery |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110288221 | 2011-09-26 | ||
| CN201110288221.X | 2011-09-26 | ||
| CN2011103930422A CN102394279A (en) | 2011-09-26 | 2011-12-01 | Charging explosion-proof temperature control lithium ion battery |
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| CN102394279A true CN102394279A (en) | 2012-03-28 |
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| CN2011103930422A Pending CN102394279A (en) | 2011-09-26 | 2011-12-01 | Charging explosion-proof temperature control lithium ion battery |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103325987A (en) * | 2013-05-30 | 2013-09-25 | 苏州启智机电技术有限公司 | Punching-resistant lithium battery |
| CN104362409A (en) * | 2014-09-17 | 2015-02-18 | 哈尔滨工业大学（威海） | Oil bath-based natural circulation and heat pipe-coupled battery pack thermal management system |
| CN104953165A (en) * | 2015-07-12 | 2015-09-30 | 陈卡丹 | Overcharge anti-explosion battery |
| CN109904354A (en) * | 2019-02-28 | 2019-06-18 | 珠海格力电器股份有限公司 | Battery case for solving problem of internal short circuit of battery by using insulating liquid and battery |
| CN110190207A (en) * | 2019-06-11 | 2019-08-30 | 珠海格力电器股份有限公司 | Soft package battery and preparation method thereof |
| CN111342109A (en) * | 2020-03-08 | 2020-06-26 | 浙江万马新能源有限公司 | Battery safety technology |
| CN111477992A (en) * | 2020-03-10 | 2020-07-31 | 安徽潜川动力锂电科技有限公司 | Explosion-proof protective housing based on lithium iron phosphate battery |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103325987A (en) * | 2013-05-30 | 2013-09-25 | 苏州启智机电技术有限公司 | Punching-resistant lithium battery |
| CN104362409A (en) * | 2014-09-17 | 2015-02-18 | 哈尔滨工业大学（威海） | Oil bath-based natural circulation and heat pipe-coupled battery pack thermal management system |
| CN104953165A (en) * | 2015-07-12 | 2015-09-30 | 陈卡丹 | Overcharge anti-explosion battery |
| CN109904354A (en) * | 2019-02-28 | 2019-06-18 | 珠海格力电器股份有限公司 | Battery case for solving problem of internal short circuit of battery by using insulating liquid and battery |
| CN109904354B (en) * | 2019-02-28 | 2024-03-22 | 珠海格力电器股份有限公司 | Battery case and battery for solving internal short circuit problem of battery by using insulating liquid |
| CN110190207A (en) * | 2019-06-11 | 2019-08-30 | 珠海格力电器股份有限公司 | Soft package battery and preparation method thereof |
| CN111342109A (en) * | 2020-03-08 | 2020-06-26 | 浙江万马新能源有限公司 | Battery safety technology |
| CN111477992A (en) * | 2020-03-10 | 2020-07-31 | 安徽潜川动力锂电科技有限公司 | Explosion-proof protective housing based on lithium iron phosphate battery |
| CN111477992B (en) * | 2020-03-10 | 2022-10-04 | 安徽潜川动力锂电科技有限公司 | Explosion-proof protection shell based on lithium iron phosphate battery |
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Application publication date: 20120328 |